import Vue from 'vue'
import VueRouter from 'vue-router'
import store from "@/store";

Vue.use(VueRouter)

const routes = [
  {
    path: '/login',
    name: 'Login',
    component: () => import('../views/Login.vue'),

  },
  {
    path: '/404',
    name: '404',
    component: () => import('../views/404.vue')
  },
  {
    path: '/register',
    name: 'Register',
    component:()=>import('../views/Register.vue')
  },
  {
    path: '/front',
    name: 'Front',
    component:()=>import('../views/front/Front.vue'),
    children:[
      {
        path: 'home',
        name: 'FrontHome',
        component:()=>import('../views/front/Home.vue'),
      },
      {
        path:'frontPerson',
        name:'FrontPersion',
        component:()=>import('../views/front/FrontPerson.vue')
      },
      {
        path: 'frontAbout',
        name: 'FrontAbout',
        component:()=>import('../views/front/FrontAbout.vue')
      },
      {
        path:'moreInfo',
        name:'MoreInfo',
        component:()=>import('../views/front/MoreInfo.vue')
      },
      {
        path:'videos',
        name:'Videos',
        component:()=>import('../views/front/Videos.vue')
      },
      {
        path:'selectCourse',
        name:'SelectCourse',
        component:()=>import('../views/front/SelectCourse.vue')
      },
      {
        path:'videoDetail',
        name:'VideoDetail',
        component:()=>import('../views/front/VideoDetail.vue')
      },
      {
        path:'article',
        name:'FrontArticle',
        component:()=>import('../views/front/Article.vue')
      },
      {
        path:'articleDetail',
        name:'ArticleDetail',
        component:()=>import('../views/front/ArticleDetail.vue')
      }
    ]
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})


//重置路由
export const resetRouter=() =>{
  router.matcher=new VueRouter({
    mode: 'history',
    base: process.env.BASE_URL,
    routes
  })
}

// 注意：刷新页面会导致页面路由重置
export const setRoutes = () => {
  const storeMenus = localStorage.getItem("menus");

  if (storeMenus) {


    // 获取当前的路由对象名称数组
    const currentRouteNames = router.getRoutes().map(v => v.name)
    if (!currentRouteNames.includes('Manage')) {
      // 拼装动态路由
      const manageRoute = { path: '/', name: 'Manage', component: () => import('../views/Manage.vue'), redirect: "/home", children: [
          {
            path: 'person',
            name: 'Person',
            component: () => import('../views/Person.vue')
          }
        ] }
      const menus = JSON.parse(storeMenus)
      menus.forEach(item => {
        if (item.path) {  // 当且仅当path不为空的时候才去设置路由
          let itemMenu = { path: item.path.replace("/", ""), name: item.name, component: () => import('../views/' + item.pagePath + '.vue')}
          manageRoute.children.push(itemMenu)
        }
        else if(item.children.length) {
          item.children.forEach(item => {
            if (item.path) {
              let itemMenu = { path: item.path.replace("/", ""), name: item.name, component: () => import('../views/' + item.pagePath + '.vue')}
              manageRoute.children.push(itemMenu)
            }
          })
        }
      })
      // 动态添加到现在的路由对象中去
      router.addRoute(manageRoute)
    }

  }
}

// 重置我就再set一次路由
setRoutes()

// 路由守卫
router.beforeEach((to, from, next) => {
  localStorage.setItem("currentPathName", to.name)  // 设置当前的路由名称，为了在Header组件中去使用
  store.commit("setPath")  // 触发store的数据更新

  if(!to.matched.length){
    const item1 = localStorage.getItem("menus");
    if(item1){
      next("/404")
    }else{
      next("/login")
    }
  }
  next()  // 放行路由




})

export default router
